- 摘 要
-
趙 彤 謝 劍 戴自強
（天津大學(xué)土木工程系 300072）[提要] 通過9根碳纖維布加固補強鋼筋混凝土梁的試驗，主要研究碳纖維布用量對鋼筋混凝土梁受彎性能的影響和作用。試驗研究表明，使用碳纖維布來提高鋼筋混凝土受彎構(gòu)件正截面承載力的方法是有效的，粘貼碳纖維布后，試驗梁的受彎承載力明顯提高。此外，還編制了計算機分析程序進行理論分析，并提出了一種簡化的受彎承載力計算方法，該方法與試驗數(shù)據(jù)和理論分析可較好地吻合，可以滿足實際工程設(shè)計的要求。
[關(guān)鍵詞] 碳纖維布 受彎承載力 補強加固Nine simply supported beams strengthened with carbon fiber sheet (CFS) are tested. Experimental re-
sults indicate that CFS can evidently increase the yield load when the longitudinal reinforcement reaches its yield point and the ultimate load of the reinforced concrete beams subjected to bending. The hypothesis of plane sections is also verified by the experiment. Based on the experiment, a computer analysis program is developed and a simplified design formula is proposed. The design method can meet the engineering requirements.
Keywords: carbon fiber sheet; flexural strength; strengthening
